How is this page generated and how to get rid of it ?

Hello,
I have a page on my site that I have not created but that created itself.
Here is the url : http://www.ngpark.fr/38-location-places-parking-pas-cher-aeroport-nantes-atlantique.html
As you can see there is the figure 38 which is the id of the category. I really do not want this page to exist and to be accessed. It displays all the articles of this category.
Same thing for this link http://www.ngpark.fr/component/tags/tag/12-atlantique.html
It is self generated, and I wonder if google like these pages of tags ?
Thanks for your help.
Regards
Kris

Hi

This is how K2 works. Using a correct url You can use a different view. All You can do is to add a redirection for this url to a 404 page in joomla redirect component.

This is not K2, these tags are from Joomla 3.
I wonder if a redirection to a 404 page is a good thing for us with google which will not like 404 pages

Hi

It's same thing. Any joomla component is using url to pass some information about what should be displayed and in what format. So even without a link You can force a certain display by manipulating url in browser.

Please tell me where this link is present on Your website exactly, so I will learn what is creating it and will tell You where it can be disabled.